他今天脾气很差，最好别惹他。

He has a bad ___temper today, so it's better not to upset him.

她在提出建议时用温和的语气缓和了批评的尖锐性。

She ___tempered her criticism with a gentle tone when giving advice.

这把刀的钢经过特殊回火处理，非常耐用。

The blade's steel has a perfect ___temper, making it extremely durable.